Sleeping Beauty Castle is the fairy tale structure castle at the center of Disneyland Park and Hong Kong Disneyland. It is based on the late-19th century Neuschwanstein Castle in Bavaria, Germany, with some French inspirations.
Opened July 17, 1955, the castle is the oldest of all Disney castles. Though it reaches a height of only 77 feet (23 m), it was designed to appear taller through a process known as forced perspective; design elements are larger at the foundation and smaller at the turrets. The castle initially featured an empty upper level that was never intended to house an attraction, but Walt Disney was not satisfied with what he viewed as wasted space, and challenged his Imagineers to find some use for the space. Sources